Analog: Continuous transmission of information to our senses. It reads bumps and grooves. Analog data is more accurate than digital data.

Bit: Comes from the Phrase Binary DigIT. A bit is the smallest unit of data in a cmputer. A full page is about 16,000 bits. Bits are different than Bytes.

Cache: A Cache stores recently used information in a place where it can be accessed extremly fast. Disk Cache stores information you have recently read from your hard disk in the computers Ram.

Firmware: Allows a software program on  ahardware device to communicate with the computer. It is semi permenant since it remains the same unless it is updated by firmware updater.

Memory: Usually refers to RAM or random access memory. When your computer boots up, it loads the operating system into memory. It stores programs and systems. When your computer is off Ram is erased.

Flash Memory: Name comoes from how the memory is designed. A section of memory cells can be erased in a single action or in a flash. Stores the settings in a computer Digital Cameras, cell phones, and networking.

Peripheral: Any external device that provides input and output for the computer. A keyboard and a mouse are input peripherals.

USB: Universal Serial Bus. Most common type of computer port used in todays computers. Keyboards, mice, controllers, printers, and scanners. USB 1.1 vs USB 2.0. Intorduced in 1997, the technology didnt really take of the Apple Imac which used USB ports exclusively.

Ehternet: Most common type of connection computers use in local area network. An ethernet port looks

much like a regular phone jack but slightly wider. Connect computer to computer.

Chip: Piece of silicon with an electronic circuit embedded in it. Embedded in to computers, graphic cards, and memory.